(19)
(11) EP 2 517 255 A1

(12)

(43) Date of publication:
31.10.2012 Bulletin 2012/44

(21) Application number: 10839622.7

(22) Date of filing: 22.12.2010
(51) International Patent Classification (IPC): 
H01L 29/786(2006.01)
G02F 1/1368(2006.01)
G02F 1/167(2006.01)
G09G 3/30(2006.01)
G09G 3/36(2006.01)
 C01F 17/00(2006.01)
G02F 1/15(2006.01)
G02F 1/17(2006.01)
G09G 3/34(2006.01)
(86) International application number:
PCT/JP2010/073846
(87) International publication number:
WO 2011/078398 (30.06.2011 Gazette 2011/26)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

(30) Priority: 25.12.2009 JP 2009295425
18.03.2010 JP 2010062244
03.12.2010 JP 2010270240
06.12.2010 JP 2010271980

(71) Applicant: Ricoh Company, Limited
Tokyo 143-8555 (JP)

(72) Inventors:
  • SONE, Yuji
    Tokyo 143-8555 (JP)
  • UEDA, Naoyuki
    Tokyo 143-8555 (JP)
  • NAKAMURA, Yuki
    Tokyo 143-8555 (JP)
  • ABE, Yukiko
    Tokyo 143-8555 (JP)

(74) Representative: Schwabe - Sandmair - Marx 
Patentanwälte Stuntzstraße 16
81677 München
81677 München (DE)

   


(54) FIELD-EFFECT TRANSISTOR, SEMICONDUCTOR MEMORY, DISPLAY ELEMENT, IMAGE DISPLAY DEVICE, AND SYSTEM